Angular control for the nav bar

[hawkw]

I think that in order to support the level of sophistication I'd like, we're going to need to give the navigation bar its own controller. Some things that this controller ought to handle:

• [ ] Displaying a login prompt when the user clicks the login button (using a popover from AngularStrap?)
• [ ] Delegating the actual login/logout action to whatever controller/service is eventually written to do that
• [ ] Changing the login button to a link to the user's profile when logged in (and a log out button)
• [ ] Displaying a link to the admin app when logged in as an admin
• [ ] Possibly highlighting whatever component is currently active?

It would be ideal if the same nav bar could be used in both the main app and the admin app. That way, the navbar HTML code could be placed in defaults.ssp. The code for the controller itself would go in /assets/coffee/ or /assets/js/ so it can be compiled to scripts.js and linked in to both apps.

[hawkw]

I'm assigning this to @redbassett, since a) it's front-end, and b) it involves the JavaScript Angles Library, which I still do not really comprehend at all. Since most of the functionality is related to/relies on user accounts, I've put this in Christie.

However, I might start working on some of the simpler bits (e.g. highlighting the active component) as part of my trying-to-teach-myself-Angular process.

[hawkw]

This is obviously obsolete if we decide to do #63 instead.